Crossword Genius

Possibly nicest crawler? (6)

Ross

I believe the answer is:

insect

I'm a little stuck... Click here to teach me more about this clue!

'crawler?' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's an association between them I don't understand?

'possibly nicest' is the wordplay.
'possibly' indicates an anagram.
'nicest' with letters rearranged gives 'INSECT'.

Can you help me to learn more?

(Other definitions for insect that I've seen before include "Nicest (anag) - six-footer" , "Ladybird, for example" , "Perhaps nit" , "A fly, for instance" , "Small creature with six legs and no backbone" .)

I've seen this clue in The Sun.
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